Home / 1,636.18-2,258.40-1,077.08

Finding the Fourth Proportional to 1,636.18, 2,258.40 and 1,077.08

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Solution

The fourth proportional to 1,636.18, 2,258.40 and 1,077.08 is: 1,486.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,636.18 : 2,258.40 = 1,077.08 : x
  2. Step 2: Convert to fraction form
    1,636.18/2,258.40 = 1,077.08/x
  3. Step 3: Cross multiply
    1,636.18x = 2,258.40 × 1,077.08
  4. Step 4: Simplify right side
    1,636.18x = 2,432,477.47
  5. Step 5: Solve for x
    x = 2,432,477.47/1,636.18
  6. Step 6: Final answer
    x = 1,486.68

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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.