Home / 2,861.10-3,948.32-1,602.16

Finding the Fourth Proportional to 2,861.10, 3,948.32 and 1,602.16

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Solution

The fourth proportional to 2,861.10, 3,948.32 and 1,602.16 is: 2,210.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,861.10 : 3,948.32 = 1,602.16 : x
  2. Step 2: Convert to fraction form
    2,861.10/3,948.32 = 1,602.16/x
  3. Step 3: Cross multiply
    2,861.10x = 3,948.32 × 1,602.16
  4. Step 4: Simplify right side
    2,861.10x = 6,325,834.51
  5. Step 5: Solve for x
    x = 6,325,834.51/2,861.10
  6. Step 6: Final answer
    x = 2,210.98

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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.