Home / 1,562.01-2,154.57-1,188.17

Finding the Fourth Proportional to 1,562.01, 2,154.57 and 1,188.17

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Solution

The fourth proportional to 1,562.01, 2,154.57 and 1,188.17 is: 1,638.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,562.01 : 2,154.57 = 1,188.17 : x
  2. Step 2: Convert to fraction form
    1,562.01/2,154.57 = 1,188.17/x
  3. Step 3: Cross multiply
    1,562.01x = 2,154.57 × 1,188.17
  4. Step 4: Simplify right side
    1,562.01x = 2,559,984.66
  5. Step 5: Solve for x
    x = 2,559,984.66/1,562.01
  6. Step 6: Final answer
    x = 1,638.91

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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.