Home / 3,075.40-4,244.37-1,816.86

Finding the Fourth Proportional to 3,075.40, 4,244.37 and 1,816.86

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Solution

The fourth proportional to 3,075.40, 4,244.37 and 1,816.86 is: 2,507.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,075.40 : 4,244.37 = 1,816.86 : x
  2. Step 2: Convert to fraction form
    3,075.40/4,244.37 = 1,816.86/x
  3. Step 3: Cross multiply
    3,075.40x = 4,244.37 × 1,816.86
  4. Step 4: Simplify right side
    3,075.40x = 7,711,435.18
  5. Step 5: Solve for x
    x = 7,711,435.18/3,075.40
  6. Step 6: Final answer
    x = 2,507.46

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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.