Home / 4,869.28-7,298.80-1,946.40

Finding the Fourth Proportional to 4,869.28, 7,298.80 and 1,946.40

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Solution

The fourth proportional to 4,869.28, 7,298.80 and 1,946.40 is: 2,917.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,869.28 : 7,298.80 = 1,946.40 : x
  2. Step 2: Convert to fraction form
    4,869.28/7,298.80 = 1,946.40/x
  3. Step 3: Cross multiply
    4,869.28x = 7,298.80 × 1,946.40
  4. Step 4: Simplify right side
    4,869.28x = 14,206,384.32
  5. Step 5: Solve for x
    x = 14,206,384.32/4,869.28
  6. Step 6: Final answer
    x = 2,917.55

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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.