Home / 5,436.48-7,502.08-3,078.40

Finding the Fourth Proportional to 5,436.48, 7,502.08 and 3,078.40

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Solution

The fourth proportional to 5,436.48, 7,502.08 and 3,078.40 is: 4,248.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,436.48 : 7,502.08 = 3,078.40 : x
  2. Step 2: Convert to fraction form
    5,436.48/7,502.08 = 3,078.40/x
  3. Step 3: Cross multiply
    5,436.48x = 7,502.08 × 3,078.40
  4. Step 4: Simplify right side
    5,436.48x = 23,094,403.07
  5. Step 5: Solve for x
    x = 23,094,403.07/5,436.48
  6. Step 6: Final answer
    x = 4,248.04

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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.