Home / 1,148.51-1,586.37-1,131.23

Finding the Fourth Proportional to 1,148.51, 1,586.37 and 1,131.23

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Solution

The fourth proportional to 1,148.51, 1,586.37 and 1,131.23 is: 1,562.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,148.51 : 1,586.37 = 1,131.23 : x
  2. Step 2: Convert to fraction form
    1,148.51/1,586.37 = 1,131.23/x
  3. Step 3: Cross multiply
    1,148.51x = 1,586.37 × 1,131.23
  4. Step 4: Simplify right side
    1,148.51x = 1,794,541.40
  5. Step 5: Solve for x
    x = 1,794,541.40/1,148.51
  6. Step 6: Final answer
    x = 1,562.50

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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.