Home / 2,011.13-2,775.36-1,312.50

Finding the Fourth Proportional to 2,011.13, 2,775.36 and 1,312.50

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Solution

The fourth proportional to 2,011.13, 2,775.36 and 1,312.50 is: 1,811.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,011.13 : 2,775.36 = 1,312.50 : x
  2. Step 2: Convert to fraction form
    2,011.13/2,775.36 = 1,312.50/x
  3. Step 3: Cross multiply
    2,011.13x = 2,775.36 × 1,312.50
  4. Step 4: Simplify right side
    2,011.13x = 3,642,660
  5. Step 5: Solve for x
    x = 3,642,660/2,011.13
  6. Step 6: Final answer
    x = 1,811.25

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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.