Home / 5,415.02-7,478.08-3,740.76

Finding the Fourth Proportional to 5,415.02, 7,478.08 and 3,740.76

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Solution

The fourth proportional to 5,415.02, 7,478.08 and 3,740.76 is: 5,165.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,415.02 : 7,478.08 = 3,740.76 : x
  2. Step 2: Convert to fraction form
    5,415.02/7,478.08 = 3,740.76/x
  3. Step 3: Cross multiply
    5,415.02x = 7,478.08 × 3,740.76
  4. Step 4: Simplify right side
    5,415.02x = 27,973,702.54
  5. Step 5: Solve for x
    x = 27,973,702.54/5,415.02
  6. Step 6: Final answer
    x = 5,165.95

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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.