Home / 5,613.75-8,420.64-1,718.46

Finding the Fourth Proportional to 5,613.75, 8,420.64 and 1,718.46

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Solution

The fourth proportional to 5,613.75, 8,420.64 and 1,718.46 is: 2,577.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,613.75 : 8,420.64 = 1,718.46 : x
  2. Step 2: Convert to fraction form
    5,613.75/8,420.64 = 1,718.46/x
  3. Step 3: Cross multiply
    5,613.75x = 8,420.64 × 1,718.46
  4. Step 4: Simplify right side
    5,613.75x = 14,470,533.01
  5. Step 5: Solve for x
    x = 14,470,533.01/5,613.75
  6. Step 6: Final answer
    x = 2,577.69

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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.