Home / 4,020.40-6,031.26-1,247.32

Finding the Fourth Proportional to 4,020.40, 6,031.26 and 1,247.32

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Solution

The fourth proportional to 4,020.40, 6,031.26 and 1,247.32 is: 1,871.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,020.40 : 6,031.26 = 1,247.32 : x
  2. Step 2: Convert to fraction form
    4,020.40/6,031.26 = 1,247.32/x
  3. Step 3: Cross multiply
    4,020.40x = 6,031.26 × 1,247.32
  4. Step 4: Simplify right side
    4,020.40x = 7,522,911.22
  5. Step 5: Solve for x
    x = 7,522,911.22/4,020.40
  6. Step 6: Final answer
    x = 1,871.18

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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.