Home / 1,607.60-2,419.95-1,148.55

Finding the Fourth Proportional to 1,607.60, 2,419.95 and 1,148.55

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Solution

The fourth proportional to 1,607.60, 2,419.95 and 1,148.55 is: 1,728.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,607.60 : 2,419.95 = 1,148.55 : x
  2. Step 2: Convert to fraction form
    1,607.60/2,419.95 = 1,148.55/x
  3. Step 3: Cross multiply
    1,607.60x = 2,419.95 × 1,148.55
  4. Step 4: Simplify right side
    1,607.60x = 2,779,433.57
  5. Step 5: Solve for x
    x = 2,779,433.57/1,607.60
  6. Step 6: Final answer
    x = 1,728.94

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.