Home / 1,515.01-2,271.21-1,257.16

Finding the Fourth Proportional to 1,515.01, 2,271.21 and 1,257.16

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Solution

The fourth proportional to 1,515.01, 2,271.21 and 1,257.16 is: 1,884.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,515.01 : 2,271.21 = 1,257.16 : x
  2. Step 2: Convert to fraction form
    1,515.01/2,271.21 = 1,257.16/x
  3. Step 3: Cross multiply
    1,515.01x = 2,271.21 × 1,257.16
  4. Step 4: Simplify right side
    1,515.01x = 2,855,274.36
  5. Step 5: Solve for x
    x = 2,855,274.36/1,515.01
  6. Step 6: Final answer
    x = 1,884.66

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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.