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Finding the Fourth Proportional to 1,368.15, 1,886.99 and 895.52

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Solution

The fourth proportional to 1,368.15, 1,886.99 and 895.52 is: 1,235.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,368.15 : 1,886.99 = 895.52 : x
  2. Step 2: Convert to fraction form
    1,368.15/1,886.99 = 895.52/x
  3. Step 3: Cross multiply
    1,368.15x = 1,886.99 × 895.52
  4. Step 4: Simplify right side
    1,368.15x = 1,689,823.37
  5. Step 5: Solve for x
    x = 1,689,823.37/1,368.15
  6. Step 6: Final answer
    x = 1,235.12

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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.