Home / 1,487.23-2,052.47-824.18

Finding the Fourth Proportional to 1,487.23, 2,052.47 and 824.18

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Solution

The fourth proportional to 1,487.23, 2,052.47 and 824.18 is: 1,137.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,487.23 : 2,052.47 = 824.18 : x
  2. Step 2: Convert to fraction form
    1,487.23/2,052.47 = 824.18/x
  3. Step 3: Cross multiply
    1,487.23x = 2,052.47 × 824.18
  4. Step 4: Simplify right side
    1,487.23x = 1,691,596.52
  5. Step 5: Solve for x
    x = 1,691,596.52/1,487.23
  6. Step 6: Final answer
    x = 1,137.42

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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.