Home / 2,187.53-3,019.10-1,303.35

Finding the Fourth Proportional to 2,187.53, 3,019.10 and 1,303.35

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Solution

The fourth proportional to 2,187.53, 3,019.10 and 1,303.35 is: 1,798.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,187.53 : 3,019.10 = 1,303.35 : x
  2. Step 2: Convert to fraction form
    2,187.53/3,019.10 = 1,303.35/x
  3. Step 3: Cross multiply
    2,187.53x = 3,019.10 × 1,303.35
  4. Step 4: Simplify right side
    2,187.53x = 3,934,943.99
  5. Step 5: Solve for x
    x = 3,934,943.99/2,187.53
  6. Step 6: Final answer
    x = 1,798.81

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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.