Home / 1,572.32-2,167.08-1,178.66

Finding the Fourth Proportional to 1,572.32, 2,167.08 and 1,178.66

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Solution

The fourth proportional to 1,572.32, 2,167.08 and 1,178.66 is: 1,624.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,572.32 : 2,167.08 = 1,178.66 : x
  2. Step 2: Convert to fraction form
    1,572.32/2,167.08 = 1,178.66/x
  3. Step 3: Cross multiply
    1,572.32x = 2,167.08 × 1,178.66
  4. Step 4: Simplify right side
    1,572.32x = 2,554,250.51
  5. Step 5: Solve for x
    x = 2,554,250.51/1,572.32
  6. Step 6: Final answer
    x = 1,624.51

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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.