Home / 1,566.50-2,159.70-1,347.80

Finding the Fourth Proportional to 1,566.50, 2,159.70 and 1,347.80

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Solution

The fourth proportional to 1,566.50, 2,159.70 and 1,347.80 is: 1,858.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,566.50 : 2,159.70 = 1,347.80 : x
  2. Step 2: Convert to fraction form
    1,566.50/2,159.70 = 1,347.80/x
  3. Step 3: Cross multiply
    1,566.50x = 2,159.70 × 1,347.80
  4. Step 4: Simplify right side
    1,566.50x = 2,910,843.66
  5. Step 5: Solve for x
    x = 2,910,843.66/1,566.50
  6. Step 6: Final answer
    x = 1,858.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.