Home / 2,900.66-4,002.80-1,574.33

Finding the Fourth Proportional to 2,900.66, 4,002.80 and 1,574.33

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Solution

The fourth proportional to 2,900.66, 4,002.80 and 1,574.33 is: 2,172.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,900.66 : 4,002.80 = 1,574.33 : x
  2. Step 2: Convert to fraction form
    2,900.66/4,002.80 = 1,574.33/x
  3. Step 3: Cross multiply
    2,900.66x = 4,002.80 × 1,574.33
  4. Step 4: Simplify right side
    2,900.66x = 6,301,747.34
  5. Step 5: Solve for x
    x = 6,301,747.34/2,900.66
  6. Step 6: Final answer
    x = 2,172.52

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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.