Home / 1,347.14-2,030.39-1,271.80

Finding the Fourth Proportional to 1,347.14, 2,030.39 and 1,271.80

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Solution

The fourth proportional to 1,347.14, 2,030.39 and 1,271.80 is: 1,916.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,347.14 : 2,030.39 = 1,271.80 : x
  2. Step 2: Convert to fraction form
    1,347.14/2,030.39 = 1,271.80/x
  3. Step 3: Cross multiply
    1,347.14x = 2,030.39 × 1,271.80
  4. Step 4: Simplify right side
    1,347.14x = 2,582,233.49
  5. Step 5: Solve for x
    x = 2,582,233.49/1,347.14
  6. Step 6: Final answer
    x = 1,916.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.