Home / 2,697.60-4,046.08-1,158.40

Finding the Fourth Proportional to 2,697.60, 4,046.08 and 1,158.40

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Solution

The fourth proportional to 2,697.60, 4,046.08 and 1,158.40 is: 1,737.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,697.60 : 4,046.08 = 1,158.40 : x
  2. Step 2: Convert to fraction form
    2,697.60/4,046.08 = 1,158.40/x
  3. Step 3: Cross multiply
    2,697.60x = 4,046.08 × 1,158.40
  4. Step 4: Simplify right side
    2,697.60x = 4,686,979.07
  5. Step 5: Solve for x
    x = 4,686,979.07/2,697.60
  6. Step 6: Final answer
    x = 1,737.46

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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.