Home / 5,411.04-7,447.80-3,836.40

Finding the Fourth Proportional to 5,411.04, 7,447.80 and 3,836.40

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Solution

The fourth proportional to 5,411.04, 7,447.80 and 3,836.40 is: 5,280.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,411.04 : 7,447.80 = 3,836.40 : x
  2. Step 2: Convert to fraction form
    5,411.04/7,447.80 = 3,836.40/x
  3. Step 3: Cross multiply
    5,411.04x = 7,447.80 × 3,836.40
  4. Step 4: Simplify right side
    5,411.04x = 28,572,739.92
  5. Step 5: Solve for x
    x = 28,572,739.92/5,411.04
  6. Step 6: Final answer
    x = 5,280.45

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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.