Home / 3,215.76-4,437.96-2,036.40

Finding the Fourth Proportional to 3,215.76, 4,437.96 and 2,036.40

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Solution

The fourth proportional to 3,215.76, 4,437.96 and 2,036.40 is: 2,810.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,215.76 : 4,437.96 = 2,036.40 : x
  2. Step 2: Convert to fraction form
    3,215.76/4,437.96 = 2,036.40/x
  3. Step 3: Cross multiply
    3,215.76x = 4,437.96 × 2,036.40
  4. Step 4: Simplify right side
    3,215.76x = 9,037,461.74
  5. Step 5: Solve for x
    x = 9,037,461.74/3,215.76
  6. Step 6: Final answer
    x = 2,810.37

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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.