Home / 1,503.10-2,074.29-839.98

Finding the Fourth Proportional to 1,503.10, 2,074.29 and 839.98

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Solution

The fourth proportional to 1,503.10, 2,074.29 and 839.98 is: 1,159.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,503.10 : 2,074.29 = 839.98 : x
  2. Step 2: Convert to fraction form
    1,503.10/2,074.29 = 839.98/x
  3. Step 3: Cross multiply
    1,503.10x = 2,074.29 × 839.98
  4. Step 4: Simplify right side
    1,503.10x = 1,742,362.11
  5. Step 5: Solve for x
    x = 1,742,362.11/1,503.10
  6. Step 6: Final answer
    x = 1,159.18

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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.