Home / 1,547.60-2,308.90-1,461.20

Finding the Fourth Proportional to 1,547.60, 2,308.90 and 1,461.20

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Solution

The fourth proportional to 1,547.60, 2,308.90 and 1,461.20 is: 2,180.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,547.60 : 2,308.90 = 1,461.20 : x
  2. Step 2: Convert to fraction form
    1,547.60/2,308.90 = 1,461.20/x
  3. Step 3: Cross multiply
    1,547.60x = 2,308.90 × 1,461.20
  4. Step 4: Simplify right side
    1,547.60x = 3,373,764.68
  5. Step 5: Solve for x
    x = 3,373,764.68/1,547.60
  6. Step 6: Final answer
    x = 2,180.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.