Home / 2,807.18-4,210.75-1,075.81

Finding the Fourth Proportional to 2,807.18, 4,210.75 and 1,075.81

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Solution

The fourth proportional to 2,807.18, 4,210.75 and 1,075.81 is: 1,613.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,807.18 : 4,210.75 = 1,075.81 : x
  2. Step 2: Convert to fraction form
    2,807.18/4,210.75 = 1,075.81/x
  3. Step 3: Cross multiply
    2,807.18x = 4,210.75 × 1,075.81
  4. Step 4: Simplify right side
    2,807.18x = 4,529,959.62
  5. Step 5: Solve for x
    x = 4,529,959.62/2,807.18
  6. Step 6: Final answer
    x = 1,613.70

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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.