Home / 2,862.40-4,297.20-1,547.20

Finding the Fourth Proportional to 2,862.40, 4,297.20 and 1,547.20

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Solution

The fourth proportional to 2,862.40, 4,297.20 and 1,547.20 is: 2,322.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,862.40 : 4,297.20 = 1,547.20 : x
  2. Step 2: Convert to fraction form
    2,862.40/4,297.20 = 1,547.20/x
  3. Step 3: Cross multiply
    2,862.40x = 4,297.20 × 1,547.20
  4. Step 4: Simplify right side
    2,862.40x = 6,648,627.84
  5. Step 5: Solve for x
    x = 6,648,627.84/2,862.40
  6. Step 6: Final answer
    x = 2,322.75

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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.