Home / 4,875.10-7,312.65-2,906.80

Finding the Fourth Proportional to 4,875.10, 7,312.65 and 2,906.80

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Solution

The fourth proportional to 4,875.10, 7,312.65 and 2,906.80 is: 4,360.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,875.10 : 7,312.65 = 2,906.80 : x
  2. Step 2: Convert to fraction form
    4,875.10/7,312.65 = 2,906.80/x
  3. Step 3: Cross multiply
    4,875.10x = 7,312.65 × 2,906.80
  4. Step 4: Simplify right side
    4,875.10x = 21,256,411.02
  5. Step 5: Solve for x
    x = 21,256,411.02/4,875.10
  6. Step 6: Final answer
    x = 4,360.20

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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.