Home / 1,045.19-1,566.86-395.47

Finding the Fourth Proportional to 1,045.19, 1,566.86 and 395.47

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Solution

The fourth proportional to 1,045.19, 1,566.86 and 395.47 is: 592.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,045.19 : 1,566.86 = 395.47 : x
  2. Step 2: Convert to fraction form
    1,045.19/1,566.86 = 395.47/x
  3. Step 3: Cross multiply
    1,045.19x = 1,566.86 × 395.47
  4. Step 4: Simplify right side
    1,045.19x = 619,646.12
  5. Step 5: Solve for x
    x = 619,646.12/1,045.19
  6. Step 6: Final answer
    x = 592.86

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.