Home / 2,397.49-3,308.95-1,389.24

Finding the Fourth Proportional to 2,397.49, 3,308.95 and 1,389.24

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Solution

The fourth proportional to 2,397.49, 3,308.95 and 1,389.24 is: 1,917.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,397.49 : 3,308.95 = 1,389.24 : x
  2. Step 2: Convert to fraction form
    2,397.49/3,308.95 = 1,389.24/x
  3. Step 3: Cross multiply
    2,397.49x = 3,308.95 × 1,389.24
  4. Step 4: Simplify right side
    2,397.49x = 4,596,925.70
  5. Step 5: Solve for x
    x = 4,596,925.70/2,397.49
  6. Step 6: Final answer
    x = 1,917.39

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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.