Home / 1,565.34-2,166.39-1,345.02

Finding the Fourth Proportional to 1,565.34, 2,166.39 and 1,345.02

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Solution

The fourth proportional to 1,565.34, 2,166.39 and 1,345.02 is: 1,861.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,565.34 : 2,166.39 = 1,345.02 : x
  2. Step 2: Convert to fraction form
    1,565.34/2,166.39 = 1,345.02/x
  3. Step 3: Cross multiply
    1,565.34x = 2,166.39 × 1,345.02
  4. Step 4: Simplify right side
    1,565.34x = 2,913,837.88
  5. Step 5: Solve for x
    x = 2,913,837.88/1,565.34
  6. Step 6: Final answer
    x = 1,861.47

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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.