Home / 2,710.23-3,738.63-1,869.45

Finding the Fourth Proportional to 2,710.23, 3,738.63 and 1,869.45

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Solution

The fourth proportional to 2,710.23, 3,738.63 and 1,869.45 is: 2,578.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,710.23 : 3,738.63 = 1,869.45 : x
  2. Step 2: Convert to fraction form
    2,710.23/3,738.63 = 1,869.45/x
  3. Step 3: Cross multiply
    2,710.23x = 3,738.63 × 1,869.45
  4. Step 4: Simplify right side
    2,710.23x = 6,989,181.85
  5. Step 5: Solve for x
    x = 6,989,181.85/2,710.23
  6. Step 6: Final answer
    x = 2,578.82

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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.