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Finding the Fourth Proportional to 3,536.68, 4,878.48 and 2,740.72

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Solution

The fourth proportional to 3,536.68, 4,878.48 and 2,740.72 is: 3,780.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,536.68 : 4,878.48 = 2,740.72 : x
  2. Step 2: Convert to fraction form
    3,536.68/4,878.48 = 2,740.72/x
  3. Step 3: Cross multiply
    3,536.68x = 4,878.48 × 2,740.72
  4. Step 4: Simplify right side
    3,536.68x = 13,370,547.71
  5. Step 5: Solve for x
    x = 13,370,547.71/3,536.68
  6. Step 6: Final answer
    x = 3,780.54

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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.