Home / 2,860.28-4,291.18-1,011.15

Finding the Fourth Proportional to 2,860.28, 4,291.18 and 1,011.15

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Solution

The fourth proportional to 2,860.28, 4,291.18 and 1,011.15 is: 1,516.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,860.28 : 4,291.18 = 1,011.15 : x
  2. Step 2: Convert to fraction form
    2,860.28/4,291.18 = 1,011.15/x
  3. Step 3: Cross multiply
    2,860.28x = 4,291.18 × 1,011.15
  4. Step 4: Simplify right side
    2,860.28x = 4,339,024.13
  5. Step 5: Solve for x
    x = 4,339,024.13/2,860.28
  6. Step 6: Final answer
    x = 1,516.99

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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.