Home / 1,357.40-2,026.13-1,172.76

Finding the Fourth Proportional to 1,357.40, 2,026.13 and 1,172.76

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Solution

The fourth proportional to 1,357.40, 2,026.13 and 1,172.76 is: 1,750.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,357.40 : 2,026.13 = 1,172.76 : x
  2. Step 2: Convert to fraction form
    1,357.40/2,026.13 = 1,172.76/x
  3. Step 3: Cross multiply
    1,357.40x = 2,026.13 × 1,172.76
  4. Step 4: Simplify right side
    1,357.40x = 2,376,164.22
  5. Step 5: Solve for x
    x = 2,376,164.22/1,357.40
  6. Step 6: Final answer
    x = 1,750.53

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.