Home / 6,748.07-9,312.05-4,979.03

Finding the Fourth Proportional to 6,748.07, 9,312.05 and 4,979.03

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Solution

The fourth proportional to 6,748.07, 9,312.05 and 4,979.03 is: 6,870.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,748.07 : 9,312.05 = 4,979.03 : x
  2. Step 2: Convert to fraction form
    6,748.07/9,312.05 = 4,979.03/x
  3. Step 3: Cross multiply
    6,748.07x = 9,312.05 × 4,979.03
  4. Step 4: Simplify right side
    6,748.07x = 46,364,951.42
  5. Step 5: Solve for x
    x = 46,364,951.42/6,748.07
  6. Step 6: Final answer
    x = 6,870.85

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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.