Home / 4,320.19-6,478.80-1,853.47

Finding the Fourth Proportional to 4,320.19, 6,478.80 and 1,853.47

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Solution

The fourth proportional to 4,320.19, 6,478.80 and 1,853.47 is: 2,779.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,320.19 : 6,478.80 = 1,853.47 : x
  2. Step 2: Convert to fraction form
    4,320.19/6,478.80 = 1,853.47/x
  3. Step 3: Cross multiply
    4,320.19x = 6,478.80 × 1,853.47
  4. Step 4: Simplify right side
    4,320.19x = 12,008,261.44
  5. Step 5: Solve for x
    x = 12,008,261.44/4,320.19
  6. Step 6: Final answer
    x = 2,779.57

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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.