Home / 5,075.79-7,617.53-2,156.14

Finding the Fourth Proportional to 5,075.79, 7,617.53 and 2,156.14

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Solution

The fourth proportional to 5,075.79, 7,617.53 and 2,156.14 is: 3,235.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,075.79 : 7,617.53 = 2,156.14 : x
  2. Step 2: Convert to fraction form
    5,075.79/7,617.53 = 2,156.14/x
  3. Step 3: Cross multiply
    5,075.79x = 7,617.53 × 2,156.14
  4. Step 4: Simplify right side
    5,075.79x = 16,424,461.13
  5. Step 5: Solve for x
    x = 16,424,461.13/5,075.79
  6. Step 6: Final answer
    x = 3,235.84

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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.