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Finding the Fourth Proportional to 1,750.98, 2,626.20 and 655.20

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Solution

The fourth proportional to 1,750.98, 2,626.20 and 655.20 is: 982.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,750.98 : 2,626.20 = 655.20 : x
  2. Step 2: Convert to fraction form
    1,750.98/2,626.20 = 655.20/x
  3. Step 3: Cross multiply
    1,750.98x = 2,626.20 × 655.20
  4. Step 4: Simplify right side
    1,750.98x = 1,720,686.24
  5. Step 5: Solve for x
    x = 1,720,686.24/1,750.98
  6. Step 6: Final answer
    x = 982.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.