Home / 5,342.08-7,374.40-3,830.72

Finding the Fourth Proportional to 5,342.08, 7,374.40 and 3,830.72

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Solution

The fourth proportional to 5,342.08, 7,374.40 and 3,830.72 is: 5,288.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,342.08 : 7,374.40 = 3,830.72 : x
  2. Step 2: Convert to fraction form
    5,342.08/7,374.40 = 3,830.72/x
  3. Step 3: Cross multiply
    5,342.08x = 7,374.40 × 3,830.72
  4. Step 4: Simplify right side
    5,342.08x = 28,249,261.57
  5. Step 5: Solve for x
    x = 28,249,261.57/5,342.08
  6. Step 6: Final answer
    x = 5,288.06

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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.