Home / 1,562.05-2,156.42-1,207.18

Finding the Fourth Proportional to 1,562.05, 2,156.42 and 1,207.18

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Solution

The fourth proportional to 1,562.05, 2,156.42 and 1,207.18 is: 1,666.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,562.05 : 2,156.42 = 1,207.18 : x
  2. Step 2: Convert to fraction form
    1,562.05/2,156.42 = 1,207.18/x
  3. Step 3: Cross multiply
    1,562.05x = 2,156.42 × 1,207.18
  4. Step 4: Simplify right side
    1,562.05x = 2,603,187.10
  5. Step 5: Solve for x
    x = 2,603,187.10/1,562.05
  6. Step 6: Final answer
    x = 1,666.52

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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.