Home / 1,888.02-2,606.52-1,259.40

Finding the Fourth Proportional to 1,888.02, 2,606.52 and 1,259.40

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Solution

The fourth proportional to 1,888.02, 2,606.52 and 1,259.40 is: 1,738.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,888.02 : 2,606.52 = 1,259.40 : x
  2. Step 2: Convert to fraction form
    1,888.02/2,606.52 = 1,259.40/x
  3. Step 3: Cross multiply
    1,888.02x = 2,606.52 × 1,259.40
  4. Step 4: Simplify right side
    1,888.02x = 3,282,651.29
  5. Step 5: Solve for x
    x = 3,282,651.29/1,888.02
  6. Step 6: Final answer
    x = 1,738.67

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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.