Home / 1,598.42-2,205.75-890.23

Finding the Fourth Proportional to 1,598.42, 2,205.75 and 890.23

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Solution

The fourth proportional to 1,598.42, 2,205.75 and 890.23 is: 1,228.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,598.42 : 2,205.75 = 890.23 : x
  2. Step 2: Convert to fraction form
    1,598.42/2,205.75 = 890.23/x
  3. Step 3: Cross multiply
    1,598.42x = 2,205.75 × 890.23
  4. Step 4: Simplify right side
    1,598.42x = 1,963,619.31
  5. Step 5: Solve for x
    x = 1,963,619.31/1,598.42
  6. Step 6: Final answer
    x = 1,228.47

Related Problems

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.