Home / 3,953.20-5,457.16-2,360.40

Finding the Fourth Proportional to 3,953.20, 5,457.16 and 2,360.40

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Solution

The fourth proportional to 3,953.20, 5,457.16 and 2,360.40 is: 3,258.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,953.20 : 5,457.16 = 2,360.40 : x
  2. Step 2: Convert to fraction form
    3,953.20/5,457.16 = 2,360.40/x
  3. Step 3: Cross multiply
    3,953.20x = 5,457.16 × 2,360.40
  4. Step 4: Simplify right side
    3,953.20x = 12,881,080.46
  5. Step 5: Solve for x
    x = 12,881,080.46/3,953.20
  6. Step 6: Final answer
    x = 3,258.39

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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.