Home / 1,895.18-2,616.99-1,398.68

Finding the Fourth Proportional to 1,895.18, 2,616.99 and 1,398.68

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Solution

The fourth proportional to 1,895.18, 2,616.99 and 1,398.68 is: 1,931.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,895.18 : 2,616.99 = 1,398.68 : x
  2. Step 2: Convert to fraction form
    1,895.18/2,616.99 = 1,398.68/x
  3. Step 3: Cross multiply
    1,895.18x = 2,616.99 × 1,398.68
  4. Step 4: Simplify right side
    1,895.18x = 3,660,331.57
  5. Step 5: Solve for x
    x = 3,660,331.57/1,895.18
  6. Step 6: Final answer
    x = 1,931.39

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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.