Home / 1,925.81-2,657.90-1,140.11

Finding the Fourth Proportional to 1,925.81, 2,657.90 and 1,140.11

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Solution

The fourth proportional to 1,925.81, 2,657.90 and 1,140.11 is: 1,573.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,925.81 : 2,657.90 = 1,140.11 : x
  2. Step 2: Convert to fraction form
    1,925.81/2,657.90 = 1,140.11/x
  3. Step 3: Cross multiply
    1,925.81x = 2,657.90 × 1,140.11
  4. Step 4: Simplify right side
    1,925.81x = 3,030,298.37
  5. Step 5: Solve for x
    x = 3,030,298.37/1,925.81
  6. Step 6: Final answer
    x = 1,573.52

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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.