Home / 2,461.02-3,396.30-1,398.78

Finding the Fourth Proportional to 2,461.02, 3,396.30 and 1,398.78

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Solution

The fourth proportional to 2,461.02, 3,396.30 and 1,398.78 is: 1,930.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,461.02 : 3,396.30 = 1,398.78 : x
  2. Step 2: Convert to fraction form
    2,461.02/3,396.30 = 1,398.78/x
  3. Step 3: Cross multiply
    2,461.02x = 3,396.30 × 1,398.78
  4. Step 4: Simplify right side
    2,461.02x = 4,750,676.51
  5. Step 5: Solve for x
    x = 4,750,676.51/2,461.02
  6. Step 6: Final answer
    x = 1,930.37

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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.