Home / 6,980.55-10,458.51-3,686.40

Finding the Fourth Proportional to 6,980.55, 10,458.51 and 3,686.40

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Solution

The fourth proportional to 6,980.55, 10,458.51 and 3,686.40 is: 5,523.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,980.55 : 10,458.51 = 3,686.40 : x
  2. Step 2: Convert to fraction form
    6,980.55/10,458.51 = 3,686.40/x
  3. Step 3: Cross multiply
    6,980.55x = 10,458.51 × 3,686.40
  4. Step 4: Simplify right side
    6,980.55x = 38,554,251.26
  5. Step 5: Solve for x
    x = 38,554,251.26/6,980.55
  6. Step 6: Final answer
    x = 5,523.10

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1.5x scale

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.