Home / 1,271.12-1,904.78-1,041.62

Finding the Fourth Proportional to 1,271.12, 1,904.78 and 1,041.62

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Solution

The fourth proportional to 1,271.12, 1,904.78 and 1,041.62 is: 1,560.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,271.12 : 1,904.78 = 1,041.62 : x
  2. Step 2: Convert to fraction form
    1,271.12/1,904.78 = 1,041.62/x
  3. Step 3: Cross multiply
    1,271.12x = 1,904.78 × 1,041.62
  4. Step 4: Simplify right side
    1,271.12x = 1,984,050.02
  5. Step 5: Solve for x
    x = 1,984,050.02/1,271.12
  6. Step 6: Final answer
    x = 1,560.87

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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.