Home / 4,875.12-7,312.05-2,874.96

Finding the Fourth Proportional to 4,875.12, 7,312.05 and 2,874.96

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Solution

The fourth proportional to 4,875.12, 7,312.05 and 2,874.96 is: 4,312.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,875.12 : 7,312.05 = 2,874.96 : x
  2. Step 2: Convert to fraction form
    4,875.12/7,312.05 = 2,874.96/x
  3. Step 3: Cross multiply
    4,875.12x = 7,312.05 × 2,874.96
  4. Step 4: Simplify right side
    4,875.12x = 21,021,851.27
  5. Step 5: Solve for x
    x = 21,021,851.27/4,875.12
  6. Step 6: Final answer
    x = 4,312.07

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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.