Home / 7,916.94-11,875.55-2,988.90

Finding the Fourth Proportional to 7,916.94, 11,875.55 and 2,988.90

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Solution

The fourth proportional to 7,916.94, 11,875.55 and 2,988.90 is: 4,483.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,916.94 : 11,875.55 = 2,988.90 : x
  2. Step 2: Convert to fraction form
    7,916.94/11,875.55 = 2,988.90/x
  3. Step 3: Cross multiply
    7,916.94x = 11,875.55 × 2,988.90
  4. Step 4: Simplify right side
    7,916.94x = 35,494,816.45
  5. Step 5: Solve for x
    x = 35,494,816.45/7,916.94
  6. Step 6: Final answer
    x = 4,483.40

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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.