Home / 1,890.28-2,626.62-1,870.03

Finding the Fourth Proportional to 1,890.28, 2,626.62 and 1,870.03

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Solution

The fourth proportional to 1,890.28, 2,626.62 and 1,870.03 is: 2,598.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,890.28 : 2,626.62 = 1,870.03 : x
  2. Step 2: Convert to fraction form
    1,890.28/2,626.62 = 1,870.03/x
  3. Step 3: Cross multiply
    1,890.28x = 2,626.62 × 1,870.03
  4. Step 4: Simplify right side
    1,890.28x = 4,911,858.20
  5. Step 5: Solve for x
    x = 4,911,858.20/1,890.28
  6. Step 6: Final answer
    x = 2,598.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.