Home / 2,461.01-3,395.89-1,398.40

Finding the Fourth Proportional to 2,461.01, 3,395.89 and 1,398.40

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Solution

The fourth proportional to 2,461.01, 3,395.89 and 1,398.40 is: 1,929.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,461.01 : 3,395.89 = 1,398.40 : x
  2. Step 2: Convert to fraction form
    2,461.01/3,395.89 = 1,398.40/x
  3. Step 3: Cross multiply
    2,461.01x = 3,395.89 × 1,398.40
  4. Step 4: Simplify right side
    2,461.01x = 4,748,812.58
  5. Step 5: Solve for x
    x = 4,748,812.58/2,461.01
  6. Step 6: Final answer
    x = 1,929.62

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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.