Home / 2,877.16-3,970.55-1,618.29

Finding the Fourth Proportional to 2,877.16, 3,970.55 and 1,618.29

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Solution

The fourth proportional to 2,877.16, 3,970.55 and 1,618.29 is: 2,233.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,877.16 : 3,970.55 = 1,618.29 : x
  2. Step 2: Convert to fraction form
    2,877.16/3,970.55 = 1,618.29/x
  3. Step 3: Cross multiply
    2,877.16x = 3,970.55 × 1,618.29
  4. Step 4: Simplify right side
    2,877.16x = 6,425,501.36
  5. Step 5: Solve for x
    x = 6,425,501.36/2,877.16
  6. Step 6: Final answer
    x = 2,233.28

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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.