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Finding the Fourth Proportional to 2,547.56, 3,512.76 and 1,800.20

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Solution

The fourth proportional to 2,547.56, 3,512.76 and 1,800.20 is: 2,482.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,547.56 : 3,512.76 = 1,800.20 : x
  2. Step 2: Convert to fraction form
    2,547.56/3,512.76 = 1,800.20/x
  3. Step 3: Cross multiply
    2,547.56x = 3,512.76 × 1,800.20
  4. Step 4: Simplify right side
    2,547.56x = 6,323,670.55
  5. Step 5: Solve for x
    x = 6,323,670.55/2,547.56
  6. Step 6: Final answer
    x = 2,482.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.