Home / 2,506.19-3,458.06-1,387.07

Finding the Fourth Proportional to 2,506.19, 3,458.06 and 1,387.07

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Solution

The fourth proportional to 2,506.19, 3,458.06 and 1,387.07 is: 1,913.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,506.19 : 3,458.06 = 1,387.07 : x
  2. Step 2: Convert to fraction form
    2,506.19/3,458.06 = 1,387.07/x
  3. Step 3: Cross multiply
    2,506.19x = 3,458.06 × 1,387.07
  4. Step 4: Simplify right side
    2,506.19x = 4,796,564.35
  5. Step 5: Solve for x
    x = 4,796,564.35/2,506.19
  6. Step 6: Final answer
    x = 1,913.89

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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.