Home / 2,916.80-4,366.60-1,927.80

Finding the Fourth Proportional to 2,916.80, 4,366.60 and 1,927.80

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Solution

The fourth proportional to 2,916.80, 4,366.60 and 1,927.80 is: 2,886.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,916.80 : 4,366.60 = 1,927.80 : x
  2. Step 2: Convert to fraction form
    2,916.80/4,366.60 = 1,927.80/x
  3. Step 3: Cross multiply
    2,916.80x = 4,366.60 × 1,927.80
  4. Step 4: Simplify right side
    2,916.80x = 8,417,931.48
  5. Step 5: Solve for x
    x = 8,417,931.48/2,916.80
  6. Step 6: Final answer
    x = 2,886.02

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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.