Home / 1,807.51-2,709.19-986.49

Finding the Fourth Proportional to 1,807.51, 2,709.19 and 986.49

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Solution

The fourth proportional to 1,807.51, 2,709.19 and 986.49 is: 1,478.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,807.51 : 2,709.19 = 986.49 : x
  2. Step 2: Convert to fraction form
    1,807.51/2,709.19 = 986.49/x
  3. Step 3: Cross multiply
    1,807.51x = 2,709.19 × 986.49
  4. Step 4: Simplify right side
    1,807.51x = 2,672,588.84
  5. Step 5: Solve for x
    x = 2,672,588.84/1,807.51
  6. Step 6: Final answer
    x = 1,478.60

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1.5x scale

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.