Home / 7,070.32-9,759.28-4,980.56

Finding the Fourth Proportional to 7,070.32, 9,759.28 and 4,980.56

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Solution

The fourth proportional to 7,070.32, 9,759.28 and 4,980.56 is: 6,874.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,070.32 : 9,759.28 = 4,980.56 : x
  2. Step 2: Convert to fraction form
    7,070.32/9,759.28 = 4,980.56/x
  3. Step 3: Cross multiply
    7,070.32x = 9,759.28 × 4,980.56
  4. Step 4: Simplify right side
    7,070.32x = 48,606,679.60
  5. Step 5: Solve for x
    x = 48,606,679.60/7,070.32
  6. Step 6: Final answer
    x = 6,874.75

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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.