Home / 1,653.39-2,281.70-1,064.12

Finding the Fourth Proportional to 1,653.39, 2,281.70 and 1,064.12

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Solution

The fourth proportional to 1,653.39, 2,281.70 and 1,064.12 is: 1,468.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,653.39 : 2,281.70 = 1,064.12 : x
  2. Step 2: Convert to fraction form
    1,653.39/2,281.70 = 1,064.12/x
  3. Step 3: Cross multiply
    1,653.39x = 2,281.70 × 1,064.12
  4. Step 4: Simplify right side
    1,653.39x = 2,427,993.86
  5. Step 5: Solve for x
    x = 2,427,993.86/1,653.39
  6. Step 6: Final answer
    x = 1,468.49

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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.