Home / 1,817.36-2,711.98-1,557.20

Finding the Fourth Proportional to 1,817.36, 2,711.98 and 1,557.20

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Solution

The fourth proportional to 1,817.36, 2,711.98 and 1,557.20 is: 2,323.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,817.36 : 2,711.98 = 1,557.20 : x
  2. Step 2: Convert to fraction form
    1,817.36/2,711.98 = 1,557.20/x
  3. Step 3: Cross multiply
    1,817.36x = 2,711.98 × 1,557.20
  4. Step 4: Simplify right side
    1,817.36x = 4,223,095.26
  5. Step 5: Solve for x
    x = 4,223,095.26/1,817.36
  6. Step 6: Final answer
    x = 2,323.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.