Home / 4,328.16-6,490.88-1,207.36

Finding the Fourth Proportional to 4,328.16, 6,490.88 and 1,207.36

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Solution

The fourth proportional to 4,328.16, 6,490.88 and 1,207.36 is: 1,810.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,328.16 : 6,490.88 = 1,207.36 : x
  2. Step 2: Convert to fraction form
    4,328.16/6,490.88 = 1,207.36/x
  3. Step 3: Cross multiply
    4,328.16x = 6,490.88 × 1,207.36
  4. Step 4: Simplify right side
    4,328.16x = 7,836,828.88
  5. Step 5: Solve for x
    x = 7,836,828.88/4,328.16
  6. Step 6: Final answer
    x = 1,810.66

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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.