Home / 1,900.74-2,621.37-1,237.35

Finding the Fourth Proportional to 1,900.74, 2,621.37 and 1,237.35

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Solution

The fourth proportional to 1,900.74, 2,621.37 and 1,237.35 is: 1,706.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,900.74 : 2,621.37 = 1,237.35 : x
  2. Step 2: Convert to fraction form
    1,900.74/2,621.37 = 1,237.35/x
  3. Step 3: Cross multiply
    1,900.74x = 2,621.37 × 1,237.35
  4. Step 4: Simplify right side
    1,900.74x = 3,243,552.17
  5. Step 5: Solve for x
    x = 3,243,552.17/1,900.74
  6. Step 6: Final answer
    x = 1,706.47

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1.5x scale

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.