Home / 2,948.13-4,068.36-1,621.80

Finding the Fourth Proportional to 2,948.13, 4,068.36 and 1,621.80

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Solution

The fourth proportional to 2,948.13, 4,068.36 and 1,621.80 is: 2,238.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,948.13 : 4,068.36 = 1,621.80 : x
  2. Step 2: Convert to fraction form
    2,948.13/4,068.36 = 1,621.80/x
  3. Step 3: Cross multiply
    2,948.13x = 4,068.36 × 1,621.80
  4. Step 4: Simplify right side
    2,948.13x = 6,598,066.25
  5. Step 5: Solve for x
    x = 6,598,066.25/2,948.13
  6. Step 6: Final answer
    x = 2,238.05

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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.