Home / 2,438.04-3,364.48-1,390.10

Finding the Fourth Proportional to 2,438.04, 3,364.48 and 1,390.10

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Solution

The fourth proportional to 2,438.04, 3,364.48 and 1,390.10 is: 1,918.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,438.04 : 3,364.48 = 1,390.10 : x
  2. Step 2: Convert to fraction form
    2,438.04/3,364.48 = 1,390.10/x
  3. Step 3: Cross multiply
    2,438.04x = 3,364.48 × 1,390.10
  4. Step 4: Simplify right side
    2,438.04x = 4,676,963.65
  5. Step 5: Solve for x
    x = 4,676,963.65/2,438.04
  6. Step 6: Final answer
    x = 1,918.33

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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.