Home / 3,405.16-4,698.57-1,913.01

Finding the Fourth Proportional to 3,405.16, 4,698.57 and 1,913.01

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Solution

The fourth proportional to 3,405.16, 4,698.57 and 1,913.01 is: 2,639.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,405.16 : 4,698.57 = 1,913.01 : x
  2. Step 2: Convert to fraction form
    3,405.16/4,698.57 = 1,913.01/x
  3. Step 3: Cross multiply
    3,405.16x = 4,698.57 × 1,913.01
  4. Step 4: Simplify right side
    3,405.16x = 8,988,411.40
  5. Step 5: Solve for x
    x = 8,988,411.40/3,405.16
  6. Step 6: Final answer
    x = 2,639.64

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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.