Home / 6,510.21-8,985.24-3,859.08

Finding the Fourth Proportional to 6,510.21, 8,985.24 and 3,859.08

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Solution

The fourth proportional to 6,510.21, 8,985.24 and 3,859.08 is: 5,326.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,510.21 : 8,985.24 = 3,859.08 : x
  2. Step 2: Convert to fraction form
    6,510.21/8,985.24 = 3,859.08/x
  3. Step 3: Cross multiply
    6,510.21x = 8,985.24 × 3,859.08
  4. Step 4: Simplify right side
    6,510.21x = 34,674,759.98
  5. Step 5: Solve for x
    x = 34,674,759.98/6,510.21
  6. Step 6: Final answer
    x = 5,326.21

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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.