Home / 3,256.16-4,495.43-2,139.05

Finding the Fourth Proportional to 3,256.16, 4,495.43 and 2,139.05

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Solution

The fourth proportional to 3,256.16, 4,495.43 and 2,139.05 is: 2,953.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,256.16 : 4,495.43 = 2,139.05 : x
  2. Step 2: Convert to fraction form
    3,256.16/4,495.43 = 2,139.05/x
  3. Step 3: Cross multiply
    3,256.16x = 4,495.43 × 2,139.05
  4. Step 4: Simplify right side
    3,256.16x = 9,615,950.08
  5. Step 5: Solve for x
    x = 9,615,950.08/3,256.16
  6. Step 6: Final answer
    x = 2,953.15

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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.