Home / 2,990.28-4,480.47-1,527.42

Finding the Fourth Proportional to 2,990.28, 4,480.47 and 1,527.42

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Solution

The fourth proportional to 2,990.28, 4,480.47 and 1,527.42 is: 2,288.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,990.28 : 4,480.47 = 1,527.42 : x
  2. Step 2: Convert to fraction form
    2,990.28/4,480.47 = 1,527.42/x
  3. Step 3: Cross multiply
    2,990.28x = 4,480.47 × 1,527.42
  4. Step 4: Simplify right side
    2,990.28x = 6,843,559.49
  5. Step 5: Solve for x
    x = 6,843,559.49/2,990.28
  6. Step 6: Final answer
    x = 2,288.60

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1.5x scale

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.