Home / 2,880.09-3,974.40-1,762.92

Finding the Fourth Proportional to 2,880.09, 3,974.40 and 1,762.92

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Solution

The fourth proportional to 2,880.09, 3,974.40 and 1,762.92 is: 2,432.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,880.09 : 3,974.40 = 1,762.92 : x
  2. Step 2: Convert to fraction form
    2,880.09/3,974.40 = 1,762.92/x
  3. Step 3: Cross multiply
    2,880.09x = 3,974.40 × 1,762.92
  4. Step 4: Simplify right side
    2,880.09x = 7,006,549.25
  5. Step 5: Solve for x
    x = 7,006,549.25/2,880.09
  6. Step 6: Final answer
    x = 2,432.75

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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.