Home / 1,159.13-1,601.14-1,011.51

Finding the Fourth Proportional to 1,159.13, 1,601.14 and 1,011.51

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Solution

The fourth proportional to 1,159.13, 1,601.14 and 1,011.51 is: 1,397.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,159.13 : 1,601.14 = 1,011.51 : x
  2. Step 2: Convert to fraction form
    1,159.13/1,601.14 = 1,011.51/x
  3. Step 3: Cross multiply
    1,159.13x = 1,601.14 × 1,011.51
  4. Step 4: Simplify right side
    1,159.13x = 1,619,569.12
  5. Step 5: Solve for x
    x = 1,619,569.12/1,159.13
  6. Step 6: Final answer
    x = 1,397.23

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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.