Home / 3,075.16-4,243.50-1,816.15

Finding the Fourth Proportional to 3,075.16, 4,243.50 and 1,816.15

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Solution

The fourth proportional to 3,075.16, 4,243.50 and 1,816.15 is: 2,506.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,075.16 : 4,243.50 = 1,816.15 : x
  2. Step 2: Convert to fraction form
    3,075.16/4,243.50 = 1,816.15/x
  3. Step 3: Cross multiply
    3,075.16x = 4,243.50 × 1,816.15
  4. Step 4: Simplify right side
    3,075.16x = 7,706,832.53
  5. Step 5: Solve for x
    x = 7,706,832.53/3,075.16
  6. Step 6: Final answer
    x = 2,506.16

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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.