Home / 5,291.40-7,938.78-1,594.02

Finding the Fourth Proportional to 5,291.40, 7,938.78 and 1,594.02

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Solution

The fourth proportional to 5,291.40, 7,938.78 and 1,594.02 is: 2,391.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,291.40 : 7,938.78 = 1,594.02 : x
  2. Step 2: Convert to fraction form
    5,291.40/7,938.78 = 1,594.02/x
  3. Step 3: Cross multiply
    5,291.40x = 7,938.78 × 1,594.02
  4. Step 4: Simplify right side
    5,291.40x = 12,654,574.10
  5. Step 5: Solve for x
    x = 12,654,574.10/5,291.40
  6. Step 6: Final answer
    x = 2,391.54

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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.