Home / 7,916.88-11,875.24-3,298.80

Finding the Fourth Proportional to 7,916.88, 11,875.24 and 3,298.80

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Solution

The fourth proportional to 7,916.88, 11,875.24 and 3,298.80 is: 4,948.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,916.88 : 11,875.24 = 3,298.80 : x
  2. Step 2: Convert to fraction form
    7,916.88/11,875.24 = 3,298.80/x
  3. Step 3: Cross multiply
    7,916.88x = 11,875.24 × 3,298.80
  4. Step 4: Simplify right side
    7,916.88x = 39,174,041.71
  5. Step 5: Solve for x
    x = 39,174,041.71/7,916.88
  6. Step 6: Final answer
    x = 4,948.17

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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.