Home / 2,631.66-3,630.90-2,041.20

Finding the Fourth Proportional to 2,631.66, 3,630.90 and 2,041.20

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Solution

The fourth proportional to 2,631.66, 3,630.90 and 2,041.20 is: 2,816.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,631.66 : 3,630.90 = 2,041.20 : x
  2. Step 2: Convert to fraction form
    2,631.66/3,630.90 = 2,041.20/x
  3. Step 3: Cross multiply
    2,631.66x = 3,630.90 × 2,041.20
  4. Step 4: Simplify right side
    2,631.66x = 7,411,393.08
  5. Step 5: Solve for x
    x = 7,411,393.08/2,631.66
  6. Step 6: Final answer
    x = 2,816.24

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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.