Home / 1,925.12-2,880.96-1,574.40

Finding the Fourth Proportional to 1,925.12, 2,880.96 and 1,574.40

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Solution

The fourth proportional to 1,925.12, 2,880.96 and 1,574.40 is: 2,356.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,925.12 : 2,880.96 = 1,574.40 : x
  2. Step 2: Convert to fraction form
    1,925.12/2,880.96 = 1,574.40/x
  3. Step 3: Cross multiply
    1,925.12x = 2,880.96 × 1,574.40
  4. Step 4: Simplify right side
    1,925.12x = 4,535,783.42
  5. Step 5: Solve for x
    x = 4,535,783.42/1,925.12
  6. Step 6: Final answer
    x = 2,356.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.