Home / 2,800.07-4,200.20-1,045.52

Finding the Fourth Proportional to 2,800.07, 4,200.20 and 1,045.52

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Solution

The fourth proportional to 2,800.07, 4,200.20 and 1,045.52 is: 1,568.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,800.07 : 4,200.20 = 1,045.52 : x
  2. Step 2: Convert to fraction form
    2,800.07/4,200.20 = 1,045.52/x
  3. Step 3: Cross multiply
    2,800.07x = 4,200.20 × 1,045.52
  4. Step 4: Simplify right side
    2,800.07x = 4,391,393.10
  5. Step 5: Solve for x
    x = 4,391,393.10/2,800.07
  6. Step 6: Final answer
    x = 1,568.32

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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.