Home / 1,703.16-2,555.56-972.95

Finding the Fourth Proportional to 1,703.16, 2,555.56 and 972.95

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Solution

The fourth proportional to 1,703.16, 2,555.56 and 972.95 is: 1,459.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,703.16 : 2,555.56 = 972.95 : x
  2. Step 2: Convert to fraction form
    1,703.16/2,555.56 = 972.95/x
  3. Step 3: Cross multiply
    1,703.16x = 2,555.56 × 972.95
  4. Step 4: Simplify right side
    1,703.16x = 2,486,420.85
  5. Step 5: Solve for x
    x = 2,486,420.85/1,703.16
  6. Step 6: Final answer
    x = 1,459.88

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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.