Home / 3,501.40-5,252.10-2,918.20

Finding the Fourth Proportional to 3,501.40, 5,252.10 and 2,918.20

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Solution

The fourth proportional to 3,501.40, 5,252.10 and 2,918.20 is: 4,377.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,501.40 : 5,252.10 = 2,918.20 : x
  2. Step 2: Convert to fraction form
    3,501.40/5,252.10 = 2,918.20/x
  3. Step 3: Cross multiply
    3,501.40x = 5,252.10 × 2,918.20
  4. Step 4: Simplify right side
    3,501.40x = 15,326,678.22
  5. Step 5: Solve for x
    x = 15,326,678.22/3,501.40
  6. Step 6: Final answer
    x = 4,377.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.