Home / 1,565.15-2,159.64-935.93

Finding the Fourth Proportional to 1,565.15, 2,159.64 and 935.93

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Solution

The fourth proportional to 1,565.15, 2,159.64 and 935.93 is: 1,291.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,565.15 : 2,159.64 = 935.93 : x
  2. Step 2: Convert to fraction form
    1,565.15/2,159.64 = 935.93/x
  3. Step 3: Cross multiply
    1,565.15x = 2,159.64 × 935.93
  4. Step 4: Simplify right side
    1,565.15x = 2,021,267.19
  5. Step 5: Solve for x
    x = 2,021,267.19/1,565.15
  6. Step 6: Final answer
    x = 1,291.42

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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.