Home / 2,906.40-4,355.28-2,807.04

Finding the Fourth Proportional to 2,906.40, 4,355.28 and 2,807.04

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Solution

The fourth proportional to 2,906.40, 4,355.28 and 2,807.04 is: 4,206.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,906.40 : 4,355.28 = 2,807.04 : x
  2. Step 2: Convert to fraction form
    2,906.40/4,355.28 = 2,807.04/x
  3. Step 3: Cross multiply
    2,906.40x = 4,355.28 × 2,807.04
  4. Step 4: Simplify right side
    2,906.40x = 12,225,445.17
  5. Step 5: Solve for x
    x = 12,225,445.17/2,906.40
  6. Step 6: Final answer
    x = 4,206.39

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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.