Home / 7,098.11-9,785.85-4,970.78

Finding the Fourth Proportional to 7,098.11, 9,785.85 and 4,970.78

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Solution

The fourth proportional to 7,098.11, 9,785.85 and 4,970.78 is: 6,852.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,098.11 : 9,785.85 = 4,970.78 : x
  2. Step 2: Convert to fraction form
    7,098.11/9,785.85 = 4,970.78/x
  3. Step 3: Cross multiply
    7,098.11x = 9,785.85 × 4,970.78
  4. Step 4: Simplify right side
    7,098.11x = 48,643,307.46
  5. Step 5: Solve for x
    x = 48,643,307.46/7,098.11
  6. Step 6: Final answer
    x = 6,852.99

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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.