Home / 2,095.20-3,140.70-1,053.60

Finding the Fourth Proportional to 2,095.20, 3,140.70 and 1,053.60

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Solution

The fourth proportional to 2,095.20, 3,140.70 and 1,053.60 is: 1,579.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,095.20 : 3,140.70 = 1,053.60 : x
  2. Step 2: Convert to fraction form
    2,095.20/3,140.70 = 1,053.60/x
  3. Step 3: Cross multiply
    2,095.20x = 3,140.70 × 1,053.60
  4. Step 4: Simplify right side
    2,095.20x = 3,309,041.52
  5. Step 5: Solve for x
    x = 3,309,041.52/2,095.20
  6. Step 6: Final answer
    x = 1,579.34

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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.