Home / 6,501-9,749.20-2,117.40

Finding the Fourth Proportional to 6,501, 9,749.20 and 2,117.40

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Solution

The fourth proportional to 6,501, 9,749.20 and 2,117.40 is: 3,175.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,501 : 9,749.20 = 2,117.40 : x
  2. Step 2: Convert to fraction form
    6,501/9,749.20 = 2,117.40/x
  3. Step 3: Cross multiply
    6,501x = 9,749.20 × 2,117.40
  4. Step 4: Simplify right side
    6,501x = 20,642,956.08
  5. Step 5: Solve for x
    x = 20,642,956.08/6,501
  6. Step 6: Final answer
    x = 3,175.35

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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.