Home / 1,865.28-2,569.50-1,570.44

Finding the Fourth Proportional to 1,865.28, 2,569.50 and 1,570.44

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Solution

The fourth proportional to 1,865.28, 2,569.50 and 1,570.44 is: 2,163.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,865.28 : 2,569.50 = 1,570.44 : x
  2. Step 2: Convert to fraction form
    1,865.28/2,569.50 = 1,570.44/x
  3. Step 3: Cross multiply
    1,865.28x = 2,569.50 × 1,570.44
  4. Step 4: Simplify right side
    1,865.28x = 4,035,245.58
  5. Step 5: Solve for x
    x = 4,035,245.58/1,865.28
  6. Step 6: Final answer
    x = 2,163.35

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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.