Home / 3,031.72-4,547.04-1,388.32

Finding the Fourth Proportional to 3,031.72, 4,547.04 and 1,388.32

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Solution

The fourth proportional to 3,031.72, 4,547.04 and 1,388.32 is: 2,082.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,031.72 : 4,547.04 = 1,388.32 : x
  2. Step 2: Convert to fraction form
    3,031.72/4,547.04 = 1,388.32/x
  3. Step 3: Cross multiply
    3,031.72x = 4,547.04 × 1,388.32
  4. Step 4: Simplify right side
    3,031.72x = 6,312,746.57
  5. Step 5: Solve for x
    x = 6,312,746.57/3,031.72
  6. Step 6: Final answer
    x = 2,082.23

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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.