Home / 2,319.20-3,478.80-1,885.44

Finding the Fourth Proportional to 2,319.20, 3,478.80 and 1,885.44

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Solution

The fourth proportional to 2,319.20, 3,478.80 and 1,885.44 is: 2,828.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,319.20 : 3,478.80 = 1,885.44 : x
  2. Step 2: Convert to fraction form
    2,319.20/3,478.80 = 1,885.44/x
  3. Step 3: Cross multiply
    2,319.20x = 3,478.80 × 1,885.44
  4. Step 4: Simplify right side
    2,319.20x = 6,559,068.67
  5. Step 5: Solve for x
    x = 6,559,068.67/2,319.20
  6. Step 6: Final answer
    x = 2,828.17

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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.