Home / 6,459.21-9,689.76-2,075.22

Finding the Fourth Proportional to 6,459.21, 9,689.76 and 2,075.22

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Solution

The fourth proportional to 6,459.21, 9,689.76 and 2,075.22 is: 3,113.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,459.21 : 9,689.76 = 2,075.22 : x
  2. Step 2: Convert to fraction form
    6,459.21/9,689.76 = 2,075.22/x
  3. Step 3: Cross multiply
    6,459.21x = 9,689.76 × 2,075.22
  4. Step 4: Simplify right side
    6,459.21x = 20,108,383.75
  5. Step 5: Solve for x
    x = 20,108,383.75/6,459.21
  6. Step 6: Final answer
    x = 3,113.13

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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.