Home / 2,916.60-4,374.90-2,803.20

Finding the Fourth Proportional to 2,916.60, 4,374.90 and 2,803.20

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Solution

The fourth proportional to 2,916.60, 4,374.90 and 2,803.20 is: 4,204.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,916.60 : 4,374.90 = 2,803.20 : x
  2. Step 2: Convert to fraction form
    2,916.60/4,374.90 = 2,803.20/x
  3. Step 3: Cross multiply
    2,916.60x = 4,374.90 × 2,803.20
  4. Step 4: Simplify right side
    2,916.60x = 12,263,719.68
  5. Step 5: Solve for x
    x = 12,263,719.68/2,916.60
  6. Step 6: Final answer
    x = 4,204.80

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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.