Home / 1,505.15-2,077.67-1,347.50

Finding the Fourth Proportional to 1,505.15, 2,077.67 and 1,347.50

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Solution

The fourth proportional to 1,505.15, 2,077.67 and 1,347.50 is: 1,860.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,505.15 : 2,077.67 = 1,347.50 : x
  2. Step 2: Convert to fraction form
    1,505.15/2,077.67 = 1,347.50/x
  3. Step 3: Cross multiply
    1,505.15x = 2,077.67 × 1,347.50
  4. Step 4: Simplify right side
    1,505.15x = 2,799,643.20
  5. Step 5: Solve for x
    x = 2,799,643.20/1,505.15
  6. Step 6: Final answer
    x = 1,860.05

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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.