Home / 5,153.42-7,730.68-1,690.68

Finding the Fourth Proportional to 5,153.42, 7,730.68 and 1,690.68

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Solution

The fourth proportional to 5,153.42, 7,730.68 and 1,690.68 is: 2,536.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,153.42 : 7,730.68 = 1,690.68 : x
  2. Step 2: Convert to fraction form
    5,153.42/7,730.68 = 1,690.68/x
  3. Step 3: Cross multiply
    5,153.42x = 7,730.68 × 1,690.68
  4. Step 4: Simplify right side
    5,153.42x = 13,070,106.06
  5. Step 5: Solve for x
    x = 13,070,106.06/5,153.42
  6. Step 6: Final answer
    x = 2,536.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.