Home / 2,833.40-3,909.93-1,574.30

Finding the Fourth Proportional to 2,833.40, 3,909.93 and 1,574.30

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Solution

The fourth proportional to 2,833.40, 3,909.93 and 1,574.30 is: 2,172.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,833.40 : 3,909.93 = 1,574.30 : x
  2. Step 2: Convert to fraction form
    2,833.40/3,909.93 = 1,574.30/x
  3. Step 3: Cross multiply
    2,833.40x = 3,909.93 × 1,574.30
  4. Step 4: Simplify right side
    2,833.40x = 6,155,402.80
  5. Step 5: Solve for x
    x = 6,155,402.80/2,833.40
  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.