Home / 2,900.49-4,002.68-1,574.24

Finding the Fourth Proportional to 2,900.49, 4,002.68 and 1,574.24

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Solution

The fourth proportional to 2,900.49, 4,002.68 and 1,574.24 is: 2,172.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,900.49 : 4,002.68 = 1,574.24 : x
  2. Step 2: Convert to fraction form
    2,900.49/4,002.68 = 1,574.24/x
  3. Step 3: Cross multiply
    2,900.49x = 4,002.68 × 1,574.24
  4. Step 4: Simplify right side
    2,900.49x = 6,301,151.08
  5. Step 5: Solve for x
    x = 6,301,151.08/2,900.49
  6. Step 6: Final answer
    x = 2,172.44

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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.