Home / 2,455.76-3,389.10-1,407.98

Finding the Fourth Proportional to 2,455.76, 3,389.10 and 1,407.98

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Solution

The fourth proportional to 2,455.76, 3,389.10 and 1,407.98 is: 1,943.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,455.76 : 3,389.10 = 1,407.98 : x
  2. Step 2: Convert to fraction form
    2,455.76/3,389.10 = 1,407.98/x
  3. Step 3: Cross multiply
    2,455.76x = 3,389.10 × 1,407.98
  4. Step 4: Simplify right side
    2,455.76x = 4,771,785.02
  5. Step 5: Solve for x
    x = 4,771,785.02/2,455.76
  6. Step 6: Final answer
    x = 1,943.10

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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.