Home / 2,820.60-4,224.06-1,430.28

Finding the Fourth Proportional to 2,820.60, 4,224.06 and 1,430.28

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Solution

The fourth proportional to 2,820.60, 4,224.06 and 1,430.28 is: 2,141.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,820.60 : 4,224.06 = 1,430.28 : x
  2. Step 2: Convert to fraction form
    2,820.60/4,224.06 = 1,430.28/x
  3. Step 3: Cross multiply
    2,820.60x = 4,224.06 × 1,430.28
  4. Step 4: Simplify right side
    2,820.60x = 6,041,588.54
  5. Step 5: Solve for x
    x = 6,041,588.54/2,820.60
  6. Step 6: Final answer
    x = 2,141.95

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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.