Home / 1,126.35-1,554.30-706.77

Finding the Fourth Proportional to 1,126.35, 1,554.30 and 706.77

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Solution

The fourth proportional to 1,126.35, 1,554.30 and 706.77 is: 975.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,126.35 : 1,554.30 = 706.77 : x
  2. Step 2: Convert to fraction form
    1,126.35/1,554.30 = 706.77/x
  3. Step 3: Cross multiply
    1,126.35x = 1,554.30 × 706.77
  4. Step 4: Simplify right side
    1,126.35x = 1,098,532.61
  5. Step 5: Solve for x
    x = 1,098,532.61/1,126.35
  6. Step 6: Final answer
    x = 975.30

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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.