Home / 1,938.02-2,669.95-1,347.53

Finding the Fourth Proportional to 1,938.02, 2,669.95 and 1,347.53

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Solution

The fourth proportional to 1,938.02, 2,669.95 and 1,347.53 is: 1,856.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,938.02 : 2,669.95 = 1,347.53 : x
  2. Step 2: Convert to fraction form
    1,938.02/2,669.95 = 1,347.53/x
  3. Step 3: Cross multiply
    1,938.02x = 2,669.95 × 1,347.53
  4. Step 4: Simplify right side
    1,938.02x = 3,597,841.03
  5. Step 5: Solve for x
    x = 3,597,841.03/1,938.02
  6. Step 6: Final answer
    x = 1,856.45

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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.