Home / 1,417.55-2,126.27-377.55

Finding the Fourth Proportional to 1,417.55, 2,126.27 and 377.55

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Solution

The fourth proportional to 1,417.55, 2,126.27 and 377.55 is: 566.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,417.55 : 2,126.27 = 377.55 : x
  2. Step 2: Convert to fraction form
    1,417.55/2,126.27 = 377.55/x
  3. Step 3: Cross multiply
    1,417.55x = 2,126.27 × 377.55
  4. Step 4: Simplify right side
    1,417.55x = 802,774.18
  5. Step 5: Solve for x
    x = 802,774.18/1,417.55
  6. Step 6: Final answer
    x = 566.31

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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.