Home / 1,150.12-1,586.28-707.23

Finding the Fourth Proportional to 1,150.12, 1,586.28 and 707.23

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Solution

The fourth proportional to 1,150.12, 1,586.28 and 707.23 is: 975.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,150.12 : 1,586.28 = 707.23 : x
  2. Step 2: Convert to fraction form
    1,150.12/1,586.28 = 707.23/x
  3. Step 3: Cross multiply
    1,150.12x = 1,586.28 × 707.23
  4. Step 4: Simplify right side
    1,150.12x = 1,121,864.80
  5. Step 5: Solve for x
    x = 1,121,864.80/1,150.12
  6. Step 6: Final answer
    x = 975.43

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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.